@ Bugs: Love the paving slab-inner tube deck supports :o)

I made my speaker stands out of two up-ended lengths of railway track with a steel plate welded onto each end... Not railway sleeper but railway track. Solid cast iron. They're about 70cm tall, weigh maybe 25kg each.

I was going to put spikes on the footer to go through the carpet and stick into the floorboards but my wife said no.